\documentclass{ctexbeamer}
\begin{document}
\pagenumbering{gobble} % suppress displaying page number

%%%% 利用tikz来定位照片
\begin{tikzpicture}[remember picture, overlay]
  \node[anchor = north east] at ($(current page.north east)+(-1.5cm,-1cm)$) {\includegraphics[height=3.5cm]{avatar}};
\end{tikzpicture}%
%%%% 利用tikz来定位学校Logo，这部分没有遵守College logo positioning
\begin{tikzpicture}[remember picture, overlay]
  \node[anchor = north west] at ($(current page.north west)+(0.45cm, -0.45cm)$) {\includegraphics[width=7cm]{imperial.png}};
\end{tikzpicture}

\name{Dr. Jekyll}
\basicContactInfo{13xxx-xxx-xxx}{zheyu.ye18@alumni.imperial.ac.uk}

\input{body}

\input{footer}
\end{document}
